Speck, F. G., Gordon, G. B., Day, G. M., Gandy, E., Eckstorm, F. H., Swadesh, M., . . . Nelson, R. E. (1908). Penobscot materials, Frank G. Speck Papers.
Chicago Style (17th ed.) CitationSpeck, Frank G., et al. Penobscot Materials, Frank G. Speck Papers. 1908.
MLA (9th ed.) CitationSpeck, Frank G., et al. Penobscot Materials, Frank G. Speck Papers. 1908.
Warning: These citations may not always be 100% accurate.